1158151857 has 8 divisors (see below), whose sum is σ = 1544901120. Its totient is φ = 771751920.

The previous prime is 1158151777. The next prime is 1158151873. The reversal of 1158151857 is 7581518511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1158151857 - 2¹² = 1158147761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1158152857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79494 + ... + 92927.

It is an arithmetic number, because the mean of its divisors is an integer number (193112640).

Almost surely, 2^1158151857 is an apocalyptic number.

It is an amenable number.

1158151857 is a deficient number, since it is larger than the sum of its proper divisors (386749263).

1158151857 is a wasteful number, since it uses less digits than its factorization.

1158151857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174663.

The product of its digits is 56000, while the sum is 42.

The square root of 1158151857 is about 34031.6302430548. The cubic root of 1158151857 is about 1050.1592674505.

The spelling of 1158151857 in words is "one billion, one hundred fifty-eight million, one hundred fifty-one thousand, eight hundred fifty-seven".